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Transmission System Projects

The transmission system is Ontario’s electricity highway. Through it we send vast amounts of electricity from hydroelectric, wind, solar, nuclear, and natural gas generators over long distances to the Local Distribution Companies (LDCs) that power Ontario homes and businesses. We continue to make investments to maintain and upgrade our system. We work with communities to ensure that our transmission system has sufficient capacity to deliver a safe and reliable supply of electricity.

The Planning Process

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Each major project is unique, but they all follow a similar planning process. Explore our integrated planning approach here.

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Featured Projects:

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Power Downtown Toronto


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Overbrook to Riverview


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Leaside to Main


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Power West Toronto


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Class Environmental Assessment for Minor Transmission Facilities

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